APPARATUS AND METHOD FOR ESTIMATING DIRECTION OF ARRIVAL OF SIGNAL IN COMMUNICATION SYSTEM
    2.
    发明申请
    APPARATUS AND METHOD FOR ESTIMATING DIRECTION OF ARRIVAL OF SIGNAL IN COMMUNICATION SYSTEM 审中-公开
    用于估计通信系统中信号到达方向的装置和方法

    公开(公告)号:US20120162004A1

    公开(公告)日:2012-06-28

    申请号:US13334969

    申请日:2011-12-22

    IPC分类号: G01S13/02

    CPC分类号: G01S3/74

    摘要: Disclosed is an apparatus and method for estimating a direction of arrival (DOA) of a signal, which improves DOA estimation performance of a reception signal having a low signal to interference and noise ratio (SINR) in a communication system. In the method, a received signal is converted into a signal of a frequency region. A noise signal is separated from the signal converted into the signal of the frequency region. A noise region is filtered by setting an occupied bandwidth from the signal having the noise signal separated therefrom. A DOA of the signal obtained through the filtering of the noise region is estimated.

    摘要翻译: 公开了一种用于估计信号的到达方向(DOA)的装置和方法,其提高了通信系统中具有低信噪比(SINR)的接收信号的DOA估计性能。 在该方法中,接收信号被转换为频率区域的信号。 噪声信号与被转换成频率区域的信号的信号分离。 通过从具有与其分离的噪声信号的信号设置占用带宽来对噪声区域进行滤波。 估计通过噪声区域的滤波获得的信号的DOA。

    Methods of Forming a Photosensitive Film
    4.
    发明申请
    Methods of Forming a Photosensitive Film 有权
    形成感光膜的方法

    公开(公告)号:US20100034962A1

    公开(公告)日:2010-02-11

    申请号:US12539041

    申请日:2009-08-11

    IPC分类号: B05D3/10

    CPC分类号: G03F7/168

    摘要: In a thinner composition and a method of forming a photosensitive film, the thinner composition includes about 50 to about 90% by weight of propylene glycol monomethyl ether acetate, about 1 to about 20% by weight of propylene glycol monomethyl ether, about 1 to about 10% by weight of γ-butyrolactone, and about 1 to about 20% by weight of n-butyl acetate. The thinner composition may have a proper volatility and an improved ability to dissolve various types of photosensitive materials, and thus the thinner composition may be usefully employed in an edge bead rinse process, a rework process or a pre-wetting process.

    摘要翻译: 在较薄的组合物和形成感光膜的方法中,较薄的组合物包括约50至约90重量%的丙二醇单甲醚乙酸酯,约1至约20重量%的丙二醇单甲醚,约1至约 10重量%的γ-丁内酯和约1至约20重量%的乙酸正丁酯。 更薄的组合物可以具有适当的挥发性和改善溶解各种感光材料的能力,因此较薄的组合物可有效地用于边缘珠漂洗工艺,返工工艺或预润湿工艺。